In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

Q: Article: For centuries Stonehenge has mystified and enraptured archaeologists and visitors. So maybe it is not surprising that another monumental wonder from prehistory has been overlooked for so long - even though it is just a mile away. Experts have discovered an 'extraordinary' line of giant stones that dates back more than 4,500 years. The area around Stonehenge is littered with prehistoric sights but the 90 or more stones, lying 3ft underground, have only just been discovered by sophisticated radar equipment towed by radar equipment.  The buried monoliths are each up to 15ft tall. Instead of being arranged in a circle as they are at Stonehenge, it is thought they once formed a long standing line.  'We are looking at one of the largest stone monuments in Europe and it has been under our noses for something like 4,000 years,' said Professor Vince Gaffney, from the University of Bradford, one of the archaeologists leading the research. 'It's truly remarkable. We don't think there's anything quite like this anywhere else in the world. This is completely new and the scale is extraordinary." Prof. Gaffney believes the stones may have been planted by the same people who built Stonehenge, but he doubts whether there is a direct link between the two monuments. These stones were placed along a steep slope, cut into a natural dry valley to form a C-shaped feature. Precisely why the stones were put there remains a mystery. The archaeologists believe that at some stage the stones were pushed over. This was not done to damage the monument but rather to preserve whatever it was about the stones that seemed so important. "There was a transformation in the landscape that we do not understand," Prof. Gaffney said. "The stones had significance. These were special places. Societies were organized, as with the great cathedrals, to create these things." 
 Answer: It is the largest stone monument all over the world.

A: What can we know about Stonehenge from the passage?
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Q: Article: It's not easy growing up. Growing up can be a real "pain" for some of us. Sometimes we feel trapped, sometimes we feel sad, sometimes we are fearful, and sometimes we just don't understand why we can't stay young forever. But we should take a look back on all the hardships in life with a positive attitude and learn from them. We must overcome every obstacle one small step at a time. We should realize that all of our growing pains actually turn into growing gains! Throughout our lives we are going to face many challenges and pains, but we should never let these _ keep us from following our dreams. We must overcome every obstacle one small step at a time. As a young girl, my parents forced me to do so many things that I didn't like. They made me learn to play the violin and then the piano. At that time I hated music and I also hated them. But looking back now, I am so glad that my parents encouraged me to take music lessons. Music hasenriched  my life in so many ways. I now realize that my parents and teachers wanted me to have a better life than they did themselves. We are all going to experience growing pains, but they are just part of our life. They might seem so huge at the time, but we must be strong. Think about how we would feel if we had no challenges and lived a life like that. Life would be really boring and meaningless. The future is ours! A little hard work and sweat never hurt anyone! If we realize that these pains are just smallbumps  on our road to success, we will realize that our growing pains are actually growing gains! 
 Answer: She is grateful

A: How does the author now feel when remembering what her parents did for her in the past?
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Q: Article: Bottled water has become the choice for people who are healthy and thirsty. Bottled water is all over the world. But some say the planet's health, and people's health may be suffering from it. The idea that bottled water is safer for humans may not be true. The Natural Resources Defense Council of America said, "There is no promise that because water comes out of a bottle, it is cleaner or safer than water from the tap." Another New York City-based action group added that some bottled water is "really just tap water in a bottle--sometimes more clean, sometimes not." It is not proven that bottled water is better than tap water. Nick Reeves from the Chartered Institution of Water and Environmental Management said, "The high mineral content  of some bottled water makes them not good for feeding babies and young children." Also, most bottled water doesn't have fluoride , which can make teeth stronger. Kids are drinking more bottled water and less fluoridated tap water, and some say that's behind the recent rise in bad teeth. Storing is another problem. Placed near heat, the plastic bottles can produce bad chemicals  into the water. According to the Environmental Protection Agency, some 2.7 million tons of plastic are used worldwide to bottle water each year. The plastic can take between 400 and 1,000 years to break down. In terms of energy use, plastic bottles are also not cheap. One report said that if water and soft drink bottlers had used 10 percent recycled materials in their plastic bottles, they would have saved about 72 million gallons of gas. So, if you are worried about the effect of bottled water on the Earth, you can take the following steps. *Drink from your tap. Unless your government warns against this, it should be fine. *Get a container . Carry your tap water in a steel or a lined drinking container, and clean it between uses. *Keep it cool. Don't drink from a bottle that has been sitting in the sun, don't store it near chemicals, and don't reuse plastic bottles. *Choose glass containers over plastic if possible. When finished, recycle! 
 Answer: Bottled water may not be as good as we think.

A:
What is the main idea of the article?
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